Efficacy of some IGRs/insecticides, Kz oil and binary mixtures on mortality and enzyme activity of Egyptian mealybug Iceria aeuptiaca (Douglas) attacked Guava trees in Alexandria Governorate

Document Type : Original Article

Author

Central Laboratory of Pesticides; Sabahia, Alexandria, A.R.C.

10.21608/jpces.2005.459503

Abstract

Nine chemicals [four IGR insecticides [Lufenuron (match@), Chromafenozide (Acro@), Pyriproxyfen (Admiral@) and RH- 2485 (Runner@)], Kz mineral oil and four binary combinations] were evaluated on Guava trees against the soft scale insect Iceria aegyptiaca (Douglas) (Homoptera: Margarodidae) at El-Sabahia Research Station, Alexandria Governorate during September, 2004. Mortalities were recorded at zero, one, two, three, four and eight weeks. Also, mealybug from freated Guava trees had been collected to investigate the effect of the tested chemicals on alkaline phosphatase (AIKP), Alanine transferase (ALT) and Aspartate transferase (AST) enzymes activity, There were no significant differences among the chemical combinations, which caused more reduction effect than single treatments, and so they affected enzyme activity by the same trend. It could be concluded that Kz oil enhanced the toxicity effect of IGRs.

Keywords

Journal of Pest Control and Environmental Sciences
Volume 13, Issue 1
June 2005
Pages 73-85

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